<?php
public function upload(){
	$upload = new \Think\Upload();// 实例化上传类
	$upload->maxSize   =     3145728 ;// 设置附件上传大小
	$upload->exts      =     array('jpg', 'gif', 'png', 'jpeg');// 设置附件上传类型
	$upload->rootPath  =     './Uploads/'; // 设置附件上传根目录
	$upload->savePath  =     ''; // 设置附件上传（子）目录
	// 上传文件
	$info   =   $upload->upload();

	if(!$info) {// 上传错误提示错误信息
		return ['status'=>'faild','message'=>$upload->getError()];
		//$this->error($upload->getError());
	}else{// 上传成功
		return ['status'=>'success','message'=>'','data'=>$info];
		//$this->success('上传成功！');
	}
}